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Pile of Island Storm boulders on a mountainous terrain with fog in the background
Lawn with garden bed featuring rocks, plants, and a small tree in front of a house.
Pile of Island Storm boulders on a mountainous terrain with fog in the background
Lawn with garden bed featuring rocks, plants, and a small tree in front of a house.

Island Storm Boulders

These sophisticated, gray boulders provide a cool, contemporary aesthetic and serve as a dramatic backdrop for bright flowering plants or standalone textural feature in any landscape design.

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Materials Calculator

These calculators are designed to give approximate amounts only. They will help you determine the quantity you need; however, variations in subgrade, compaction of subgrade, or inaccurate measurements, even a quarter of an inch of depth, can make a difference.

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Which type of materials are you looking to purchase?


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For gravel and decorative rock, these are recommended depths assuming normal conditions:
1 inch and below need to be around 2 inches deep, 1.5–2 inch gravel should be 3 inches, and 2–4 inch should be 4 inches deep.
The bigger the gravel size, the deeper it needs to be for good coverage.


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